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Rotordynamic Developments For High Speed Multistage Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
At present, the majority factor limiting the designer’s ability to predict the rotordynamic behavior of multistage centrifugal pumps is the availability of accurate input data for the forces acting on the rotor. Recent ...
The Effect Of Specific Speed On The Efficiency Of Single Stage Centrifugal Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
A chart relating the efficiency of centrifugal pumps to the specific speed and capacity at the maximum efficiency capacity has been in use in the pump industry for almost forty years. While it has been useful to both the ...
Analysis Of Nozzle Loads For Process Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
Under extreme conditions, pumps may be required to withstand severe nozzle loads, which often exceed the API 610 specified values. To meet these requirements, pump mechanical behavior versus nozzle loads must be examined ...
API 610 Baseplate And Nozzle Loading Criteria
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
The baseplate and nozzle loading criteria in the December 1985 draft version of API610 7th Edition is substantially different from the criteria found in the 6th Edition. The optional heavy duty baseplate criterion has been ...
Analytical And Experimental Techniques For Solving Pump Structural Resonance Problems.
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
Proper use of current analytical and experimental techniques is essential to finding and solving structural resonance problems in pumps. Available techniques vary from the relatively simple to the very complex. Accuracy ...
Design Of Pump Shaft Trains Having Variable-Speed Electric Motors
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
With converter-fed variable speed electric motors, pulsating torques inevitably occur in the air gap and can cause torsional oscillation in the whole shaft line. The origin and behavior of these torques and how to calculate ...
Development Of An Advanced Gas Turbine Driven High-Speed Centrifugal Pump For Injection Services
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
The high-speed centrifugal pump dealt with herein has been designed principally for applications in high-pressure injection for enhanced oil recovery. To assure the high output flexibility necessary for this service, the ...
Gas-Liquid Flow Through Centrifugal Pumps - Correlation Of Data
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
The head capacity characteristics of three different submersible centrifugal pumps were correlated as a function of the gas-to-liquid ratio and pressure at the pump suction. The experimental data were from two independent ...
A Powerful Application And Troubleshooting Method For Mechanical Seals
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1985)
Understanding the possible thermodynamic paths that a sealed fluid can follow as it goes from stuffingbox conditions, across the seal faces, and then exits to the atmosphere is a basic, but often overlooked, aspect of seal ...
Screw Pumps Of One, Two And Three Screw Design
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1985)
Some fluid solutions utilized throughout the world have proven to be difficult to move, using “conventional” pumps. These included gas-liquid, Newtonian and non-Newtonian fluids. The screw pump, with its inherent slow ...